Some additional info here:
Vino a morir
(Google translate):
Tourists drowned when diving in Chankanaab
ARANA Yaneli
COZUMEL, November 21 .- The month of November recorded the third death of a tourist in the waters of Cozumel, in this case is Susan Stevenson, who was diving near the ecological park "Chankanaab" and was reported two hours after its disappearance into the sea by personnel conducting the tour, being found already dead, meanwhile, the ministerial authorities are already investigating the case.
The incident took place Monday at 07:30 hours when the boat "Sleeping Shark" out of the creek located in the north hotel zone, with four people on board, who went to the reef which is located near the park ecotourism "Chankanaab."
On arriving there the group of friends, including the now deceased, were thrown into the sea with scuba equipment, but until 09:30 hours noticed that Susane Stevenson, 66-year-old from Baltimore, United States , who was staying at the Reef Hotel Regency, had disappeared.
For what they gave to the authorities who began to search, still miles ahead found the lifeless body of the unfortunate tourists, and proceeded to move her to the facilities of the creek, where two ambulances were already waiting, as originally reported that it was only an unconscious person.
Then the paramedics of the hyperbaric chamber, tried to give first aid, but all in vain, because the tourists had no vital signs, giving notice to the ministerial authorities of death.
Personnel arrived at the place of the Public Ministry, the State Judicial Police (PJE), experts in the field of criminology in the Attorney General's Office (PGJE) who conducted the survey for the oxygen tank and moved the body in the Medical Service ambulance Forensic (Semefo) for necropsy and thus determine the actual cause of death, as everything indicates that treatment of asphyxia by drowning.
But ministry officials are conducting investigations as to the harbourmaster's office was not notified of the disappearance of the tourist, not until she was found dead.
With this death makes three tourists who have died this month when he dived into the sea, the first was William Bill Fox, 49, last November 12 when diving on the reef Santa Rosa, the second occurred 13 months current Jóse Struch, 65 years old, was killed near the reef, "Santa Rita" and Susan Stevenson on Monday, 66.